USGA updates putting green construction recommendations

The United States Golf Association(USGA) has published updated greens construction recommendations. In addition to the new construction recommendations, Tips for Success have been provided.The major changes covered in the new recommendations include:

- Switch from the Los Angeles abrasion test (ASTM C131) to Micro-Deval abrasion test (ASTM D6928) to provide improved gravel stability evaluation. - More details on root zone sand pH and pH of gravel materials to help avoid iron oxide layers from developing at the gravel-sand interface -…